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hyperrogue/barriers.cpp

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// Hyperbolic Rogue -- Barriers
// Copyright (C) 2011-2019 Zeno Rogue, see 'hyper.cpp' for details
/** \file barriers.cpp
* \brief This file implements routines related to barriers (Great Walls and similar).
*/
#include "hyper.h"
namespace hr {
EX bool checkBarriersFront(cellwalker bb, int q IS(5), bool cross IS(false)) {
if(!ctof(bb.at))
return false;
if(bb.at->mpdist < BARLEV) return false;
if(bb.at->mpdist == BUGLEV) return false;
if(bb.at->bardir != NODIR) return false;
if(bb.spin == (PURE ? 3 : 0)) {q--; if(!q) return true; }
if(!cross) for(int i=0; i<7; i++) {
cellwalker bb2 = bb + i + wstep;
if(bb2.at->bardir != NODIR) return false;
if(!PURE) {
bb2 = bb2 + 4 + wstep;
if(bb2.at->bardir != NODIR) return false;
}
}
bb += wstep;
if(!PURE) { bb = bb + 3 + wstep + 3 + wstep; }
return checkBarriersBack(bb, q);
}
/** return true if the cell c is not allowed to generate barriers because of other large things already existing nearby. */
EX bool hasbardir(cell *c) {
return c->bardir != NODIR && c->bardir != NOBARRIERS;
}
EX void preventbarriers(cell *c) {
if(hybri) c = hybrid::get_where(c).first;
if(c && c->bardir == NODIR) c->bardir = NOBARRIERS;
}
EX bool checkBarriersBack(cellwalker bb, int q IS(5), bool cross IS(false)) {
// printf("back, %p, s%d\n", hr::voidp(bb.at), bb.spin);
// if(mark) { printf("mpdist = %d [%d] bardir = %d spin=%d q=%d cross=%d\n", bb.at->mpdist, BARLEV, bb.at->bardir, bb.spin, q, cross); }
if(bb.at->mpdist < BARLEV) return false;
if(bb.at->mpdist == BUGLEV) return false;
if(bb.at->bardir != NODIR) return false;
// if(bb.spin == 0 && bb.at->mpdist == INFD) return true;
if(!cross) for(int i=0; i<7; i++) {
cellwalker bb2 = bb + i + wstep;
if(bb2.at->bardir != NODIR) return false;
if(!PURE) {
bb2 = bb2 + 4 + wstep;
if(bb2.at->bardir != NODIR) return false;
}
}
bb = bb + 3 + wstep + (PURE ? 5 : 4) + wstep + 3;
return checkBarriersFront(bb, q);
}
/** warp coasts use a different algorithm for nowall barriers when has_nice_dual() is on. Check whether we should use this different algorithm when the lands are l1 and l2 */
EX bool warped_version(eLand l1, eLand l2) {
return (has_nice_dual() && (l1 == laWarpCoast || l1 == laWarpSea || l2 == laWarpSea || l2 == laWarpCoast)) || (valence() == 3);
}
EX bool checkBarriersNowall(cellwalker bb, int q, int dir, eLand l1 IS(laNone), eLand l2 IS(laNone)) {
if(bb.at->mpdist < BARLEV && l1 == l2) return false;
if(bb.cpeek()->bardir != NODIR && l1 == l2) return false;
if(bb.at->bardir != NODIR && l1 == l2) return false;
// if(bb.at->move(dir) && bb.at->move(dir)->bardir != NODIR && l1 == laNone) return false;
// if(bb.at->move(dir) && bb.at->move(dir)->mpdist < BARLEV && l1 == laNone) return false;
if(l1 != l2) {
bb.at->bardir = bb.spin; bb.at->barright = l2; bb.at->barleft = NOWALLSEP;
setland(bb.at, l1);
}
if(q > 20) return true;
if(l1 == laNone) for(int i=0; i<bb.at->type; i++) {
cell *c1 = bb.at->move(i);
if(!c1) continue;
for(int j=0; j<c1->type; j++) {
cell *c2 = c1->move(j);
if(!c2) continue;
if(c2 && c2->bardir == NOBARRIERS)
return false;
if(c2 && c2->bardir != NODIR && c2->barleft != NOWALLSEP)
return false;
// note: "far crashes" between NOWALL lines are allowed
}
}
if(warped_version(l1, l2)) {
bb = bb + wstep + (2*dir) + wstep + dir;
}
else if(valence() > 3) {
bb = bb + dir + wstep + dir;
dir = -dir;
swap(l1, l2);
}
else {
bb = bb + (dir>0?3:4) + wstep - (dir>0?3:4);
}
return checkBarriersNowall(bb, q+1, -dir, l2, l1);
}
EX eWall getElementalWall(eLand l) {
if(l == laEAir) return waChasm;
if(l == laEEarth) return waStone;
if(l == laEFire) return waEternalFire;
if(l == laEWater) return waSea;
return waNone;
}
EX void setbarrier(cell *c) {
if(isSealand(c->barleft) && isSealand(c->barright)) {
bool setbar = ctof(c);
if(c->barleft == laKraken || c->barright == laKraken)
if(c->barleft != laWarpSea && c->barright != laWarpSea)
setbar = !setbar;
c->wall = setbar ? waBarrier : waSea;
c->land = laOceanWall;
}
else if(isElemental(c->barleft) && isElemental(c->barright)) {
c->land = laElementalWall;
c->wall = getElementalWall(c->barleft);
}
else if(c->barleft == laHaunted || c->barright == laHaunted) {
c->land = laHauntedWall;
}
else if(c->barleft == laMirrored2 || c->barright == laMirrored2)
c->land = laMirrorWall2;
else if(c->barleft == laMirrored || c->barright == laMirrored)
c->land = laMirrorWall;
else if(c->barleft == laTerracotta && c->barright == laTerracotta) {
c->land = laMercuryRiver;
c->wall = waMercury;
}
else {
c->wall = waBarrier;
c->land = laBarrier;
}
}
EX void setland(cell *c, eLand l) {
if(c->land != l) {
c->landparam = 0;
}
if(l == laNone) {
printf("setland\n"); // NONEDEBUG
}
c->land = l;
}
EX void extendcheck(cell *c) {
return;
if(BITRUNCATED && c->landparam == 0 && c->barleft != NOWALLSEP) {
raiseBuggyGeneration(c, "extend error");
}
}
EX bool mirrorwall(cell *c) {
return c->barleft == laMirrored || c->barright == laMirrored;
}
EX void extendBarrierFront(cell *c) {
limitgen("extend front %p\n", hr::voidp(c));
if(buggyGeneration) return;
int ht = c->landparam;
extendcheck(c);
cellwalker bb(c, c->bardir); setbarrier(bb.at);
bb += wstep;
if(BITRUNCATED) {
bb.at->barleft = c->barleft;
bb.at->barright = c->barright;
setbarrier(bb.at);
if(!mirrorwall(bb.at))
bb.at->landparam = (ht-4);
//printf("[A heat %d]\n", ht-4);
setland((bb + 2).cpeek(), c->barleft);
setland((bb + 4).cpeek(), c->barright);
bb = bb + 3 + wstep;
bb.at->barleft = c->barright;
bb.at->barright = c->barleft;
setbarrier(bb.at);
if(!mirrorwall(bb.at))
bb.at->landparam = (ht-4)^2;
//printf("[B heat %d]\n", (ht-4)^2);
bb = bb + 3 + wstep;
bb.at->barleft = c->barleft;
bb.at->barright = c->barright;
if(!mirrorwall(bb.at))
bb.at->landparam = ht ^ 2;
}
//printf("[C heat %d]\n", (ht)^2);
bb.at->bardir = bb.spin;
bb.at->barleft = c->barright;
bb.at->barright = c->barleft;
// printf("#1\n");
extendcheck(bb.at);
extendBarrier(bb.at);
for(int a=-3; a<=3; a++) if(a) {
bb.at = c; bb.spin = c->bardir; bb += (PURE?-a:a); bb += wstep;
setland(bb.at, a > 0 ? c->barright : c->barleft);
}
}
EX void extendBarrierBack(cell *c) {
limitgen("extend back %p\n", hr::voidp(c));
if(buggyGeneration) return;
int ht = c->landparam;
extendcheck(c);
cellwalker bb(c, c->bardir); setbarrier(bb.at);
bb = bb + 3 + wstep + (PURE?5:4);
setland(bb.at, PURE ? c->barleft : c->barright);
bb = bb + wstep + 3;
bb.at->bardir = bb.spin;
bb.at->barleft = c->barright;
bb.at->barright = c->barleft;
if(!mirrorwall(bb.at))
bb.at->landparam = ht ^ 11;
extendcheck(bb.at);
//printf("[D heat %d]\n", (ht^11));
// needed for CR2 to work
if(BITRUNCATED) {
auto bb2 = bb + wstep;
bb2.at->barleft = c->barright;
bb2.at->barright = c->barleft;
if(!mirrorwall(bb2.at))
bb2.at->landparam = (ht^11)-4;
}
//printf("[E heat %d]\n", (ht^11));
// printf("#2\n");
extendBarrier(bb.at);
}
EX void extendNowall(cell *c) {
c->barleft = NOWALLSEP_USED;
cellwalker cw(c, c->bardir);
bool warpv = warped_version(c->land, c->barright);
if(warpv) {
cw += wstep;
setland(cw.at, c->barright);
}
else if(valence() > 3) {
auto cw2 = cw + wstep;
setland(cw2.at, c->barright);
cw2.at->barleft = NOWALLSEP_USED;
cw2.at->barright = c->land;
cw2.at->bardir = cw2.spin;
}
for(int i=-1; i<2; i+=2) {
cellwalker cw0;
if(warpv) {
cw0 = cw + (2*i) + wstep;
}
else if(valence() > 3) {
cw0 = cw + i + wstep + i;
}
else {
cw0 = cw + (i>0?3:4) + wstep - (i>0?3:4);
//cw0 = cw + (3*i) + wstep - (3*i);
}
if(cw0.at->barleft != NOWALLSEP_USED) {
cw0.at->barleft = NOWALLSEP;
if(valence() > 3) {
cw0.at->barright = c->barright;
cw0.at->bardir = cw0.spin;
setland(cw0.at, c->land);
}
else {
setland(cw0.at, c->barright);
cw0.at->barright = c->land;
if(c->barright == laNone) {
printf("barright\n");
}// NONEDEBUG
setland(cw0.at, c->barright);
if(warpv) cw0 += i;
cw0.at->bardir = cw0.spin;
if(warpv) cw0 -= i;
}
extendcheck(cw0.at);
extendBarrier(cw0.at);
}
}
}
bool gotit = false;
EX void extendCR5(cell *c) {
if(!BITRUNCATED) return;
// if(c->barright == laCrossroads5) extendCR5(c);
eLand forbidden = c->barleft;
eLand forbidden2 = laNone;
cellwalker cw(c, c->bardir);
for(int u=0; u<2; u++) {
// if(gotit) break;
cw = cw + 2 + wstep + 2 + wstep + 5;
if(cw.at->bardir == NODIR) {
cw.at->landparam = 40;
cw.at->bardir = cw.spin;
cw.at->barright = laCrossroads5;
eLand nland = forbidden;
for(int i=0; i<10 && (nland == forbidden || nland == forbidden2); i++)
nland = getNewLand(laCrossroads5);
if(ls::single() && specialland == laCrossroads5)
nland = laCrossroads5;
cw.at->barleft = forbidden2 = nland;
landcount[nland]++;
extendBarrier(cw.at);
gotit = true;
}
else forbidden2 = cw.at->barleft;
}
}
EX bool isbar4(cell *c) {
return
c->wall == waBarrier || c->land == laElementalWall ||
c->land == laMirrorWall || c->land == laMirrorWall2 ||
c->land == laMercuryRiver;
}
EX void extendBarrier(cell *c) {
limitgen("extend barrier %p\n", hr::voidp(c));
if(buggyGeneration) return;
if(c->barleft == NOWALLSEP_USED) return;
extendcheck(c);
// printf("build barrier at %p", hr::voidp(c));
if(c->land == laBarrier || c->land == laElementalWall || c->land == laHauntedWall || c->land == laOceanWall ||
c->land == laMirrorWall || c->land == laMirrorWall2 || c->land == laMercuryRiver) {
// printf("-> ready\n");
return;
}
// if(c->wall == waWaxWall) return;
if(c->mpdist > BARLEV) {
// printf("-> too far\n");
return; // == INFD) return;
}
if(c->barleft == NOWALLSEP) {
#if MAXMDIM >= 4
if(WDIM == 3) extend3D(c);
else
#endif
extendNowall(c);
return;
}
bool firstmirror =
(c->barleft == laMirrored || c->barright == laMirrored) &&
c->barleft != laMirrored2 && c->barright != laMirrored2;
if(firstmirror && c->barleft == laMirror && hrand(100) < 60) {
cellwalker cw(c, c->bardir);
if(BITRUNCATED) cw += wstep;
if(cw.at->land != laMirrorWall)
if(buildBarrier6(cw, 1)) return;
}
if(firstmirror && (PURE?c->barleft == laMirror : c->barright == laMirror) && hrand(100) < 60) {
cellwalker cw(c, c->bardir);
if(PURE) {
cw = cw - 3 + wstep - 3;
}
else {
cw = cw + wstep + 3 + wstep - 1; // check this
}
if(buildBarrier6(cw, 2)) return;
}
if(((c->barleft == laCrossroads3 || c->barright == laCrossroads3) && hrand(100) < 66) ||
(isElemental(c->barleft) && isElemental(c->barright) && hrand(100) < 75)
|| (firstmirror && hrand(100) < 60)
) {
cellwalker cw(c, c->bardir);
if(PURE) {
cw += wstep;
if(isbar4(cw.at)) {
cw = cw + wstep + 3 + wstep - 1 + wstep;
bool b = buildBarrier4(cw.at, cw.spin, 2, oppositeElement(c->barleft, c->barright), c->barright);
if(b) return;
}
else {
bool b = buildBarrier4(c, c->bardir, 1, c->barleft, c->barright);
if(b) return;
}
}
else {
cw = cw + 3 + wstep;
cell *cp = (cw + 4 + wstep).at;
if(!isbar4(cp)) {
cw = cw + 2 + wstep;
bool b = buildBarrier4(cw.at, cw.spin, 2, oppositeElement(c->barleft, c->barright), c->barright);
if(b) return;
}
else {
bool b = buildBarrier4(c, c->bardir, 1, c->barleft, c->barright);
if(b) return;
}
}
}
extendBarrierFront(c);
extendBarrierBack(c);
if(c->barright == laCrossroads5) extendCR5(c);
}
EX void buildBarrierForce(cell *c, int d, eLand l) {
c->bardir = d;
eLand oldland = c->land;
if(oldland == laNone) {
raiseBuggyGeneration(c, "oldland is NONE");
return;
}
eLand newland = l ? l : getNewLand(oldland);
landcount[newland]++;
if(d == 4 || d == 5 || d == 6) c->barleft = oldland, c->barright = newland;
else c->barleft = newland, c->barright = oldland;
if(!mirrorwall(c)) c->landparam = 40;
extendcheck(c);
}
EX void buildBarrier(cell *c, int d, eLand l IS(laNone)) {
d %= 7;
cellwalker bb(c, d);
if(checkBarriersFront(bb) && checkBarriersBack(bb))
buildBarrierForce(c, d, l);
}
EX bool buildBarrier6(cellwalker cw, int type) {
limitgen("build6 %p/%d (%d)\n", hr::voidp(cw.at), cw.spin, type);
cellwalker b[4];
if(buggyGeneration) return true;
if(BITRUNCATED) {
b[0] = cw + wstep;
b[1] = cw + 1 + wstep + 3 + wstep;
b[2] = cw + 4 + wstep;
b[3] = cw + 3 + wstep + 3 + wstep;
}
else {
b[0] = cw;
b[1] = cw + 3 + wstep + 3;
b[2] = cw - 2 + wstep - 3;
b[3] = cw - 3 + wstep + 2 + wstep - 3;
if(type == 1 && b[3].at->land != laMirrorWall) return false;
if(type == 2 && (b[1] + wstep).at->land != laMirrorWall) return false;
// if(type == 2 && b[2].at->land != laMirrorWall) return false;
}
if(false) {
for(int z=0; z<4; z++) {
printf("%p/%d\n", hr::voidp(b[z].at), b[z].spin);
b[z].at->wall = waStrandedBoat; b[z].at->land = laAlchemist;
b[z].at->mondir = b[z].spin;
b[z].at->mpdist = 7;
b[z].at->item = eItem(1+z);
buggyGeneration = true;
}
return true;
}
if(type == 1) {
if(!(PURE?checkBarriersFront:checkBarriersBack)(b[1], 6, true)) return false;
if(!(PURE?checkBarriersFront:checkBarriersBack)(b[2], 6, true)) return false;
}
else {
if(!(PURE?checkBarriersFront:checkBarriersBack)(b[0], 6, true)) return false;
if(!(PURE?checkBarriersFront:checkBarriersBack)(b[3], 6, true)) return false;
}
for(int d=0; d<4; d++) {
b[d].at->bardir = b[d].spin;
if(PURE) {
b[0].at->barleft = laMirrored, b[0].at->barright = laMirrored2;
b[1].at->barleft = laMirror, b[1].at->barright = laMirrored;
b[2].at->barleft = laMirrored2, b[2].at->barright = laMirrored;
b[3].at->barleft = laMirrored, b[3].at->barright = laMirror;
}
else {
b[0].at->barleft = laMirror, b[0].at->barright = laMirrored;
b[1].at->barleft = laMirrored, b[1].at->barright = laMirror;
b[2].at->barleft = laMirrored, b[2].at->barright = laMirrored2;
b[3].at->barleft = laMirrored2, b[3].at->barright = laMirrored;
}
(PURE?extendBarrierFront:extendBarrierBack)(b[d].at);
}
if(PURE && false) {
for(int z=0; z<4; z++)
b[z].at->item = eItem(1+z+4*type);
for(int a=0; a<4; a++)
extendBarrierBack((b[a]+wstep).at);
}
if(BITRUNCATED) {
setland((cw+1).cpeek(), laMirrorWall);
setland((cw+2).cpeek(), laMirrored);
setland((cw+3).cpeek(), laMirrorWall2);
setland((cw+4).cpeek(), laMirrorWall2);
setland((cw+5).cpeek(), laMirrored);
setland((cw+0).cpeek(), laMirrorWall);
setland((b[0]+2).cpeek(), laMirrored);
setland((b[3]+6).cpeek(), laMirrored2);
setland((b[3]+5).cpeek(), laMirrored2);
setland((b[1]-1).cpeek(), laMirrored);
setland((b[2]-2).cpeek(), laMirrored);
setland((b[1]-2).cpeek(), laMirrored);
setland((b[0]-2).cpeek(), laMirror);
cw.at->land = laMirrorWall;
cw.at->wall = waMirrorWall;
cw.at->landparam = 1;
}
else {
setland(cw.at, laMirrorWall2);
setland((cw+0).cpeek(), laMirrorWall2);
setland((cw+1).cpeek(), laMirrored);
setland((cw+2).cpeek(), laMirrored);
setland((cw+3).cpeek(), laMirrorWall);
setland((cw+4).cpeek(), laMirrored);
setland((cw+5).cpeek(), laMirrorWall2);
setland((cw+6).cpeek(), laMirrored2);
setland((b[1]).cpeek(), laMirrorWall);
setland((b[1]+1).cpeek(), laMirror);
setland((b[1]+2).cpeek(), laMirrorWall);
setland((b[1]+6).cpeek(), laMirrored);
setland((b[0] + wstep - 2).cpeek(), laMirrored);
setland((b[3] + wstep - 2).cpeek(), laMirrored);
}
return true;
}
EX bool buildBarrier4(cell *c, int d, int mode, eLand ll, eLand lr) {
limitgen("build4 %p\n", hr::voidp(c));
if(buggyGeneration) return true;
d %= 7;
cellwalker cd(c, d);
cellwalker b1 = cd;
cellwalker b2 = PURE ? cd + wstep : cd + wstep + 3 + wstep + 3 + wstep;
cellwalker b3 = PURE ? cd - 1 + wstep + 3 : cd + wstep + 4 + wstep + 4;
cellwalker b4 = PURE ? cd + 1 + wstep - 3 : cd + wstep - 4 + wstep - 4;
if(mode == 0) {
if(!((checkBarriersBack(b1) && checkBarriersBack(b2)))) return false;
if(!((checkBarriersFront(b3) && checkBarriersFront(b4)))) return false;
}
if(mode == 1) {
if(!(checkBarriersFront(b3, 5, true) && checkBarriersFront(b4, 5, true)))
return false;
}
if(mode == 2) {
if(!((checkBarriersBack(b1, 5, true) && checkBarriersBack(b2, 5, true))))
return false;
}
eLand xl = oppositeElement(ll, lr);
eLand xr = oppositeElement(lr, ll);
c->bardir = d, c->barleft = ll, c->barright = lr; extendBarrierBack(c);
c= b2.at; d=b2.spin;
c->bardir = d, c->barleft = xl, c->barright = xr; extendBarrierBack(c);
c= b3.at; d=b3.spin;
c->bardir = d, c->barleft = xl, c->barright = lr; extendBarrierFront(c);
c= b4.at; d=b4.spin;
c->bardir = d, c->barleft = ll, c->barright = xr; extendBarrierFront(c);
if(BITRUNCATED) for(int a=-3; a<=3; a++) if(a) {
setland((b1+a).cpeek(), a > 0 ? lr : ll);
setland((b2+a).cpeek(), a > 0 ? xr : xl);
setland((b3+a).cpeek(), a > 0 ? lr : xl);
setland((b4+a).cpeek(), a > 0 ? xr : ll);
}
if(PURE) setbarrier(b1.at), setbarrier(b2.at), setbarrier(b3.at), setbarrier(b4.at);
if(BITRUNCATED) {
cell *cp;
cp = (b1+wstep).at;
cp->barleft = ll; cp->barright = lr; setbarrier(cp);
cp = (b2+wstep).at;
cp->barleft = xl; cp->barright = xr; setbarrier(cp);
}
return true;
}
EX void buildBarrierStrong(cell *c, int d, bool oldleft, eLand newland) {
d %= 7;
cellwalker bb(c, d);
c->bardir = d;
eLand oldland = c->land;
landcount[newland]++;
if(oldleft) c->barleft = oldland, c->barright = newland;
else c->barleft = newland, c->barright = oldland;
extendcheck(bb.at);
}
EX void buildBarrierStrong(cell *c, int d, bool oldleft) {
buildBarrierStrong(c, d, oldleft, getNewLand(c->land));
}
EX void buildCrossroads2(cell *c) {
if(buggyGeneration) return;
if(!c) return;
for(int i=0; i<c->type; i++)
if(c->move(i) && !c->move(i)->landparam && c->move(i)->mpdist < c->mpdist)
buildCrossroads2(c->move(i));
if(hasbardir(c))
extendBarrier(c);
if(c->land != laCrossroads2) return;
if(!c->landparam) {
for(int i=0; i<c->type; i++) {
cell *c2 = createMov(c, i);
if(c2 && c2->landparam && (c2->land == laCrossroads2 || c2->land == laBarrier)) {
for(int j=0; j<c2->type; j++) {
createMov(c2, j);
cell *c3 = c2->move(j);
if(c3 && c3->landparam && (c3->land == laCrossroads2 || c3->land == laBarrier)) {
int h2 = c2->landparam;
int h3 = c3->landparam;
if(h2 > 100) { raiseBuggyGeneration(c2, "bad c2 landparam"); return; }
if(h3 > 100) { raiseBuggyGeneration(c3, "bad c3 landparam"); return; }
// ambiguous
if(h2/4 == 1 && h3/4 == 3) continue;
if(h2/4 == 3 && h3/4 == 1) continue;
for(int d=0; d<c2->type; d++)
if(emeraldtable[h2][d] == h3) {
int nh = emeraldtable[h2][(42+d + c->c.spin(i) - j) % c2->type];
if(c->landparam>0 && c->landparam != nh) {
printf("CONFLICT\n");
raiseBuggyGeneration(c, "CONFLICT");
}
c->landparam = nh;
}
if(c->landparam == 0)
printf("H2 = %d H3=%d\n", c2->landparam, c3->landparam);
}
}
if(c->landparam == 0) {
printf("H2 = %d\n", c2->landparam);
// halted = true;
// c->heat = -1;
raiseBuggyGeneration(c, "buildCrossroads2x");
return;
}
}
}
if(c->landparam) {
// for(int i=0; i<c->type; i++) {
// cell *c2 = c->move(i);
// buildCrossroads2(c2);
// }
}
else {
raiseBuggyGeneration(c, "buildCrossroads2");
return;
}
}
int h = c->landparam;
if(h/4 >= 8 && h/4 <= 11) {
for(int i=0; i<c->type; i++) if(c->land != laBarrier) {
cell *c2 = createMov(c, i);
if(c2->land == laBarrier) continue;
c2->land = laCrossroads2;
if(!c2->landparam) buildCrossroads2(c2);
}
if(h/4 == 8 || h/4 == 10)
for(int i=0; i<c->type; i++) {
if(c->move(i) && c->move(i)->landparam == h-4) {
bool oldleft = true;
for(int j=1; j<=3; j++)
if(c->modmove(i+j) && c->modmove(i+j)->mpdist < c->mpdist)
oldleft = false;
c->landparam = h;
if(ls::single())
buildBarrierStrong(c, i, oldleft, specialland);
else
buildBarrierStrong(c, i, oldleft);
c->landparam = h;
extendBarrier(c);
}
}
}
}
#if MAXMDIM >= 4
EX void extend3D(cell *c) {
eLand l1 = c->land;
c->barleft = NOWALLSEP_USED;
cellwalker cw(c, c->bardir);
if(S3 == 5) {
cw += wstep; cw += rev;
cw.at->bardir = NOBARRIERS;
setland(cw.at, laBarrier);
}
auto cw1 = cw + wstep;
setland(cw1.at, c->barright);
if(cw1.at->bardir == NODIR) {
cw1.at->barleft = NOWALLSEP_USED;
cw1.at->barright = l1;
cw1.at->bardir = cw1.spin;
}
for(int j=0; j<S7; j++) if(cgi.dirs_adjacent[cw.spin][j]) {
cellwalker bb2 = reg3::strafe(cw, j);
if(S3 == 5) { bb2 += rev; bb2 += wstep; }
if(bb2.at->bardir == NODIR) {
bb2.at->bardir = bb2.spin;
bb2.at->barleft = NOWALLSEP;
bb2.at->barright = c->barright;
bb2.at->land = l1;
// bb2.at->item = itGold;
extendBarrier(bb2.at);
}
}
}
bool built = false;
EX bool buildBarrier3D(cell *c, eLand l2, int forced_dir) {
if(forced_dir == NODIR) {
for(int t=0; t<S7; t++) if((!c->move(t) || c->move(t)->mpdist > c->mpdist) && buildBarrier3D(c, l2, t)) return true;
return false;
}
cellwalker cw(c, forced_dir);
if(S3 == 5) { cw += wstep; cw += rev; }
set<cell*> listed_cells = { cw.at };
vector<cellwalker> to_test { cw };
for(int i=0; i<isize(to_test); i++) {
auto bb = to_test[i];
if(bb.at->mpdist < BARLEV) return false;
if(bb.cpeek()->mpdist < BARLEV) return false;
if(bb.cpeek()->bardir != NODIR) return false;
if(S3 == 5 && (bb+rev).cpeek()->mpdist < BARLEV) return false;
if(S3 == 5 && (bb+rev).cpeek()->bardir != NODIR) return false;
if(bb.at->bardir != NODIR) return false;
for(int j=0; j<S7; j++) {
if(S3 == 5 && i <= 5) bb.at->cmove(j);
if(cgi.dirs_adjacent[bb.spin][j] && bb.at->move(j)) {
cellwalker bb2 = reg3::strafe(bb, j);
if(listed_cells.count(bb2.at)) continue;
listed_cells.insert(bb2.at);
to_test.push_back(bb2);
}
}
}
for(int i=0; i<isize(to_test); i++) {
auto bb = to_test[i];
if(S3 == 5) { bb.at->bardir = NOBARRIERS; setland(bb.at, laBarrier); bb += rev; bb += wstep; }
bb.at->land = c->land;
bb.at->bardir = bb.spin;
bb.at->barleft = NOWALLSEP;
bb.at->barright = l2;
extendBarrier(bb.at);
}
built = true;
return true;
}
#endif
EX bool buildBarrierNowall(cell *c, eLand l2, int forced_dir IS(NODIR)) {
if(S3 >= OINF) { c->land = l2; return true; }
if(geometry == gBinary4) return false;
#if MAXMDIM >= 4
// 3D binary tilings create walls using their own methods
if(WDIM == 3 && bt::in()) return false;
if(WDIM == 3 && hyperbolic) return buildBarrier3D(c, l2, forced_dir);
#endif
if(c->land == laNone) {
printf("barrier nowall! [%p]\n", hr::voidp(c));
raiseBuggyGeneration(c, "barrier nowall!");
return false;
}
bool warpv = warped_version(c->land, l2);
if(warpv && !arcm::in() && !pseudohept(c)) return false;
vector<int> ds = hrandom_permutation(c->type);
for(int i=0; i<c->type; i++) {
int d = forced_dir != NODIR ? forced_dir : (valence()>3 && c->type > 3 && !INVERSE) ? (2+(i&1)) : ds[i];
/* if(warpv && GOLDBERG) {
d = hrand(c->type); */
if(warpv && c->move(d) && c->move(d)->mpdist < c->mpdist) continue;
if(GOLDBERG && a4 && c->move(d) && c->move(d)->mpdist <= c->mpdist) continue;
/* }
else
d = (S3>3 && !warpv) ? (2+(i&1)) : dtab[i]; */
cellwalker cw(c, d);
eLand ws = warpv ? laWarpCoast : laNone;
if(forced_dir != NODIR || (checkBarriersNowall(cw, 0, -1, ws, ws) && checkBarriersNowall(cw, 0, 1, ws, ws))) {
eLand l1 = c->land;
checkBarriersNowall(cw, 0, -1, l1, l2);
checkBarriersNowall(cw, 0, 1, l1, l2);
extendBarrier(c);
return true;
}
}
return false;
}
}
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